M29W160EB-70N6E

The M29W160EB-70N6E is the extended-temperature version of STMicroelectronics’ 16Mbit 3V bottom-boot NOR Flash memory. Rated for operation from -40°C to +125°C junction temperature, this device is designed for high-reliability applications such as automotive electronics, industrial systems operating in extreme environments, and outdoor telecom equipment where temperature extremes are encountered. The ‘E’ suffix denotes the extended temperature grade, ensuring full electrical specifications — including 70ns access time — are guaranteed across the entire temperature range. The device features the same bottom boot block architecture as the standard version: one 16KB boot block, two 8KB parameter blocks, one 32KB block, and thirty-one 64KB main blocks, all independently erasable. This allows critical boot code and configuration data to be stored separately from application firmware. All advanced features are retained including Write to Buffer for fast programming, Program/Erase Suspend and Resume, and a full status register for operation monitoring. Hardware data protection includes block locking and a reset pin. The 48-pin TSOP package provides a compact surface-mount form factor. With 100,000 program/erase cycle endurance and 10-year data retention at elevated temperatures, the M29W160EB-70N6E is suitable for demanding applications including automotive body and powertrain controllers, industrial motor drives, outdoor telecom infrastructure, aerospace systems, and high-temperature industrial equipment.

The M29W160EB-70N6E operates on the same floating gate NOR Flash principle as the standard grade version, but with process enhancements and tighter characterization to ensure reliable operation across the extended -40°C to +125°C temperature range. At the physical level, the Flash memory cells store data as charge on floating gates. The extended temperature version benefits from optimized charge retention characteristics — at high temperatures, thermal energy can accelerate charge loss from floating gates, potentially causing data corruption. The E-grade device uses improved oxide quality and cell design to maintain 10-year data retention even at elevated temperatures. Read access time is also carefully characterized at high temperatures where transistor speeds decrease and RC delays increase. The 70ns access time is guaranteed at 125°C maximum operating temperature, ensuring reliable system timing at the worst-case thermal condition. At low temperatures (-40°C), characterization ensures that programming and erase operations function correctly despite slower charge transfer kinetics. The on-chip charge pumps that generate program/erase voltages are designed to maintain output voltage regulation across temperature and supply variations. The extended temperature device undergoes additional testing and screening compared to commercial and industrial grades, ensuring reliability for mission-critical and long-lifetime applications. Functionally, the device is identical to the standard temperature version — supporting the same command set, block architecture, and features including Write to Buffer, Program/Erase Suspend/Resume, status register, and hardware protection mechanisms.

• Automotive ECU and body control modules
• Powertrain and transmission controllers
• Industrial robotics and factory automation
• Outdoor telecom base stations
• Aerospace avionics and defense
• Down-hole drilling electronics
• Smart grid and power systems
• High-temperature motor drives